Data processing: financial – business practice – management – or co – Digital rights management – Usage protection of distributed files
Reexamination Certificate
2011-08-09
2011-08-09
Reagan, James A (Department: 3621)
Data processing: financial, business practice, management, or co
Digital rights management
Usage protection of distributed files
C705S051000, C705S057000, C705S058000, C705S059000, C705S901000, C705S902000, C705S903000, C705S908000, C705S911000, C380S201000, C380S202000, C380S203000, C380S204000, C726S001000
Reexamination Certificate
active
07996335
ABSTRACT:
Usage rights information indicating a license which is usage rights corresponding to contents is stored in a license storage device, and at the time of using the contents, the rights information is output from the license storage device to a contents using device and further transmitted to a contents distribution server, and legitimacy verification of the rights information is executed at the contents distribution server, such that contents corresponding to the rights information are transmitted to the contents using device. Thus, a device and method is realized whereby distribution of contents over a network and use thereof is enabled without detracting from safety and user convenience.
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Kusakawa Masafumi
Shirai Taizo
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Reagan James A
Sony Corporation
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